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Thunderbolt docks and OSX (specifically Dell WD19TB)
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My company sent me one of these to connect my display up to - it does connect and configure, I didn't have to do anything hacky (like that thunderbolt enabler) for the laptop to recognize it (2019 16" Macbook Pro), however I can't connect multiple displays to it. The device has 2 display port ports, 1 hdmi port, and one usb-c display port (for daisy chaining) - for a total of four.

Googling around - even the approved docks (the ones you can get from Apple's store) have this issue unless your using a daisy chain compatible monitor.

I did connect this same dock to a 3 year old Dell Latitude that happens to support thunderbold as well (Dell 9365) and all 4 ports work just fine... while I was there I ran the firmware updater tool on windows, but that didn't seem to fix any of the issues described here.

Worse - about 50% of the time - disconnecting a display port monitor from this device causes the Mac to kernel panic and restart. I've reproduced this 4 times now. I know it's not an apple approved device, but nothing like that should cause the machine to crash like that.

Anyone have any sucessful stories about making these work with non display port 1.2 devices?

I'll see if I can bounce these off enterprise support as well.

Edit: looking into it more it sounds like that OSX/Hardware doesn't support Multi-Stream Transport which the dock uses to display multiple displays.

Edit2: probably the best article that explains why this doesn't work on OSX: https://medium.com/@sebvance/everything-you-need-to-know-about-macbook-pros-and-their-lack-of-displayport-mst-multi-stream-98ce33d64af4 /sigh :(.

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4 years ago